I really doubt you'd find nearly any DUI recipients on the Commuting section of BF. Most people are on this forum because they are passionate about their chosen mode of transportation.

I've come across a couple people on my commutes that received DUIs. I don't dress in the full cycling garb so I don't think most of them dress much differently than me, but their attitude is that of cycle commuting as a temporary inconvenience rather than a pathway to a better person.